824 XXVII. TYPHAOEA. kno-wn that this apparent combustion is due to a disease arising from the growth of a parasitic Fungus (Famago), which covers the leaves with a black powder analogous to charcoal. Gaudichaud has divided Pandanus into several genera, the characters of which appear to depend on the form of the atigmas; theae genera not being described, but only figured, we shall enumerate here only Souleyetia and Heterostigma, which are more distinctly characterized. The male fiowers of Pandanus have a sweet but very penetrating odour. The leaves are used for making sacks, in which Bourbon coffee ia aent to Europe. The juice of certsun Pemdani is recommended as an aatringent in dysentery; the young fruit is considered an emmenagogue. XXVII. TYPHACE^. (Typk,e, Jussieu.—Typhina, Agardh.—Typhace^, D.C.) Sparganium simplex. Sparganium. Transvei-se section of ovary (mag.). 5. ramosum. Pistil (mag.).